Flat sanding machine

ABSTRACT

A flat sanding structure contains: a body including a first and a second wood planing zones. The second wooding zone has two supporting shelves and two grinding wheels. Two supports are connected with two first fixing pieces and two second fixing pieces, a third holding plate is fixed between the two grinding wheels and the two supporting shelves. Said each first fixing piece has a first through orifice and two elongated orifices, a first connecting shaft has a threaded orifice, a first holder is defined between the two first fixing pieces, and two posts are inserted into the two first fixing pieces and connected with the first holder. The first holder has a tab and an elongated hole. A second connecting shaft is inserted into each second fixing piece, a second holder is defined between the two second fixing pieces, and one of the two supports has a column.

FIELD OF THE INVENTION

The present invention relates to a flat sanding machine which has a second wood planing zone formed on a top of the flat sanding machine except for a first wood planing zone so as to increase wood planing zone.

BACKGROUND OF THE INVENTION

A conventional wood planing machine contains a planing tool fixed on an upper end thereof, a wood planing zone defined between the planing tool and a lower end of the wood planing machine, such that a wooden workpiece is pushed into the wood planing zone so as to be planned by the planing tool.

However, a size of the wood planing zone is limited so the conventional wood planing machine cannot plane the wooden workpieces of various sizes.

The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.

SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide a flat sanding machine which has a second wood planing zone formed on a top of the flat sanding machine except for a first wood planing zone so as to increase wood planing zone.

Further objective of the present invention is to provide a flat sanding machine which allows adjusting depth and a tilted angle of an abutting plate in the second wood planing zone and tilted

Another objective of the present invention is to provide a flat sanding machine in which at least one covers or uncovers the two grinding wheels based on a size of a workpiece.

To obtain above-mentioned objectives, a flat sanding machine provided by the present invention contains: a body including a first wood planing zone and a second wood planing zone.

The second wooding zone is formed between two tops of two supports fixed on two sides of the body respectively.

The second wood planing zone has two supporting shelves mounted on two inner walls of the two supports, respectively, and the second wood planing zone has two parallel grinding wheels arranged between the two supporting shelves, wherein each grinding wheel has a sanding belt rolled on a roller, a front end of each support is connected with each of two first fixing pieces, and a rear end of said each support is coupled with each of two second fixing pieces, a third holding plate is fixed between the two parallel grinding wheels and between the two supporting shelves.

Said each first fixing piece has a first through orifice formed proximate to a bottom thereof and has two elongated orifices defined adjacent to a top thereof, and a first connecting shaft is inserted into the first through orifice of said each fixing piece and has a threaded orifice arranged on a central position thereof, a first holder is defined between the two first fixing pieces, each of two posts is inserted into two opposite elongated orifices of the two first fixing pieces and is in connection with the first holder on which a first holding plate is fixed, wherein the first holder has a tab extending outwardly from a bottom of a front end thereof and has an elongated hole defined on the tab so as to accommodate a threaded rod which screws with the threaded orifice of the first connecting shaft.

A second connecting shaft is inserted into a second through orifice of said each second fixing piece, and a second holder is defined between the two second fixing pieces and is configured to support a second holding plate.

Furthermore, one of the two supports has a column extending outward.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view showing the assembly of a part of a flat sanding machine according to a preferred embodiment of the present invention.

FIG. 2 is a perspective view showing the exploded components of a part of the flat sanding machine according to the preferred embodiment of the present invention.

FIG. 3 is a cross sectional view showing the assembly of a part of the flat sanding machine according to the preferred embodiment of the present invention.

FIG. 4 is a side plan view showing the operation of a part of the flat sanding machine according to the preferred embodiment of the present invention.

FIG. 5 is another side plan view showing the operation of a part of the flat sanding machine according to the preferred embodiment of the present invention.

FIG. 6 is another perspective view showing the assembly of a part of the flat sanding machine according to the preferred embodiment of the present invention.

FIG. 7 is a perspective view showing the operation of a part of the flat sanding machine according to the preferred embodiment of the present invention.

FIG. 8 is a perspective view showing the operation of an abutting plate of the flat sanding machine according to the preferred embodiment of the present invention.

FIG. 9 is another perspective view showing the operation of the abutting plate of the flat sanding machine according to the preferred embodiment of the present invention.

FIG. 10 is also another perspective view showing the operation of the abutting plate of the flat sanding machine according to the preferred embodiment of the present invention.

FIG. 11 is another perspective view showing the assembly of a part of the flat sanding machine according to the preferred embodiment of the present invention.

FIG. 12 is a side plan view showing the assembly of a part of the flat sanding machine according to the preferred embodiment of the present invention.

FIG. 13 is a perspective view showing the assembly of a part of the flat sanding machine according to another preferred embodiment of the present invention.

FIG. 14 is a side plan view showing the operation of a part of the flat sanding machine according to said another preferred embodiment of the present invention.

FIG. 15 is a perspective view showing the operation of a part of the flat sanding machine according to said another preferred embodiment of the present invention.

FIG. 16 is another side plan view showing the operation of a part of the flat sanding machine according to said another preferred embodiment of the present invention.

FIG. 17 is another perspective view showing the operation of a part of the flat sanding machine according to said another preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference to FIGS. 1 to 3, a flat sanding structure according to a preferred embodiment of the present invention comprises: a body 10, and the body 10 includes a first wood planing zone 12, two supports 11 fixed on two sides of the body 10 respectively, and a second wood planing zone 20 formed between two tops of the two supports 11, wherein the second wood planing zone 20 has two supporting shelves 21 mounted on two inner walls of the two supports 11 respectively and has two parallel grinding wheels 22 arranged between the two supporting shelves 21, wherein each grinding wheel 22 has a sanding belt 221 rolled on a roller 222. A front end of each support 11 is connected with each of two first fixing pieces 42, and a rear end of said each support 11 is coupled with each of two second fixing pieces 32. Said each first fixing piece 42 has a first through orifice 421 formed proximate to a bottom thereof and has two elongated orifices 422 defined adjacent to a top thereof, and a first connecting shaft 43 is inserted between the first through orifice 421 of said each first fixing piece 42 respectively and has a threaded orifice 431 arranged on a central position thereof, a first holder 41 is defined between the two first fixing pieces 42, each of two posts 44 is inserted into two opposite elongated orifices 422 of the two first fixing pieces 42 and is in connection with the first holder 41 on which a first holding plate 40 is fixed, wherein the first holder 41 has a tab 411 extending outwardly from a bottom of a front end thereof and has an elongated hole 412 defined on the tab 411 so as to accommodate a threaded rod 45 which screws with the threaded orifice 431 of the first connecting shaft 43. A second connecting shaft 33 is inserted a second through orifice 321 of said each second fixing piece 32, and a second holder 31 is defined between the two second fixing pieces 32 and is configured to support a second holding plate 30. Furthermore, a third holding plate 23 is fixed between the two parallel grinding wheels 22 and between the two supporting shelves 21.

Referring further to FIGS. 3 to 5, the threaded rod 45 is rotated inward to drive the first holder 41 to move outward, and said each post 44 moves downward along the two opposite elongated orifices 422 of the two first fixing pieces 42 respectively, such that the first holder 41 is driven to move downward by said each post 44. In contrast, the threaded rod 45 is rotated outward to drive the first holder 41 to move inward, and said each post 44 moves upward along the two opposite elongated orifices 422 of the two first fixing pieces 42 respectively, such that the first holder 41 is driven to move upward by said each post 44.

As shown in FIGS. 6 to 10, one of the two supports 11 has a column 51 extending outward and configured to support an abutting plate 50, wherein the abutting plate 50 has an angle controller 52 fixed on the column 51, such that a depth of the abutting plate 50 in the second wood planing zone 20 is adjusted. In addition, the angle controller 52 has a driving lever 54 and an arcuate slot 53, when the driving lever 54 is released in the arcuate slot 53, a tilted angle of the abutting plate 50 is adjusted, and a position of the abutting plate 50 is adjusted by moving the angle controller 52.

As illustrated in FIGS. 11 and 12, a cover 60 is mounted above the column 51 of the body 10, wherein a fixer 61 is disposed on the column 51, a suspension arm 62 is rotatably connected with the fixer 61, and a locker 63 is arranged on the suspension arm 62 so as to lock the cover 60, such that the suspension arm 62 drives the cover 60 to rotate along the fixer 61, and the cover 60 covers the two grinding wheels.

With reference to FIGS. 13 to 16, in another embodiment, a plurality of lockers 63 are arranged on the suspension arm 62, and plural covers 60 are mounted above the column 51 of the body 10, wherein each locker 63 is configured to lock each cover 60, and a fixer 61 is disposed on the column 51, hence at least one of the plural covers 60 covers or uncovers the two grinding wheels 22 based on a size of a workpiece.

While the preferred embodiments of the invention have been set forth for the purpose of disclosure, modifications of the disclosed embodiments of the invention and other embodiments thereof may occur to those skilled in the art. Accordingly, the appended claims are intended to cover all embodiments which do not depart from the spirit and scope of the invention. 

What is claimed is:
 1. A flat sanding structure comprising: a body including a first wood planing zone and a second wood planing zone; the second wooding zone being formed between two tops of two supports fixed on two sides of the body respectively; the second wood planing zone having two supporting shelves mounted on two inner walls of the two supports, respectively, and the second wood planing zone having two parallel grinding wheels arranged between the two supporting shelves, wherein each grinding wheel has a sanding belt rolled on a roller, a front end of each support is connected with each of two first fixing pieces, and a rear end of said each support is coupled with each of two second fixing pieces, a third holding plate is fixed between the two parallel grinding wheels and between the two supporting shelves; wherein said each first fixing piece has a first through orifice formed proximate to a bottom thereof and has two elongated orifices defined adjacent to a top thereof, and a first connecting shaft is inserted into the first through orifice of said each fixing piece and has a threaded orifice arranged on a central position thereof, a first holder is defined between the two first fixing pieces, each of two posts is inserted into two opposite elongated orifices of the two first fixing pieces and is in connection with the first holder on which a first holding plate is fixed, wherein the first holder has a tab extending outwardly from a bottom of a front end thereof and has an elongated hole defined on the tab so as to accommodate a threaded rod which screws with the threaded orifice of the first connecting shaft; wherein a second connecting shaft is inserted into a second through orifice of said each second fixing piece, and a second holder is defined between the two second fixing pieces and is configured to support a second holding plate; and wherein one of the two supports has a column extending outward.
 2. The flat sanding structure as claimed in claim 1, wherein the threaded rod is rotated inward to drive the first holder to move outward, and said each post moves downward along the two opposite elongated orifices of the two first fixing pieces respectively, such that the first holder is driven to move downward by said each post.
 3. The flat sanding structure as claimed in claim 1, wherein the threaded rod is rotated outward to drive the first holder to move inward, and said each post moves upward along the two opposite elongated orifices of the two first fixing pieces respectively, such that the first holder is driven to move upward by said each post.
 4. The flat sanding structure as claimed in claim 1, wherein the column is configured to support an abutting plate, and the abutting plate has an angle controller fixed on the column, the angle controller has a driving lever and an arcuate slot.
 5. The flat sanding structure as claimed in claim 4, wherein a depth of the abutting plate in the second wood planing zone is adjusted by moving the angle controller on the column.
 6. The flat sanding structure as claimed in claim 4, wherein when the driving lever is released in the arcuate slot, a tilted angle of the abutting plate is adjusted.
 7. The flat sanding structure as claimed in claim 4, wherein and a position of the abutting plate is adjusted by moving the angle controller.
 8. The flat sanding structure as claimed in claim 1, wherein at least one cover is mounted above the column of the body, a fixer is disposed on the column, a suspension arm is rotatably connected with the fixer, and at least one locker is arranged on the suspension arm so as to lock the at least one cover.
 9. The flat sanding structure as claimed in claim 8, wherein the suspension arm drives the at least one cover to rotate along the fixer, and the at least one cover covers the two grinding wheels.
 10. The flat sanding structure as claimed in claim 8, wherein the at least one locker and the at least one cover are moved by the suspension arm.
 11. The flat sanding structure as claimed in claim 8, wherein a plurality of lockers are arranged on the suspension arm, plural covers are mounted above the column of the body, and each locker is configured to lock each cover. 